At my day job we use ClickUp and as a contractor for another large company we use Jira. ClickUp is actually awesome. It’s a joy to use, it has more features then we need, it’s extremely flexible when it comes to linking tasks together. It has a document solution that’s very good. I would highly recommend.
I’ve just started using linear for a personal OSS project. It seems nice so far but I don’t have enough experience with it to say for sure.